Voith Patent Gmbh

Voith Paper Patent Gmbh

Herbert Britz

Harald Hess

Harald Selder

Martin Kemper

Martin Staiger

Armin Bauer

Hans-Ludwig Schubert

Delphine Delmas

Alexander Peschl

Günther Kriechbaum

Christian Naydowski

Jens Haag

Gerhard Gaus

Alexander Wohlmuth

Jürgen Käser

Falk Albrecht

Sylvain Voiron

Wolfgang Mannes

Antje Voiron

Oliver LÜDTKE

Fred Unger

Jürgen Dockal-Baur

José Canga-Rodriguez

A method regulating the formation of a fibrous web, such as a paper, cardboard, or tissue web, in which method the formation of the fibrous web is measured online as a controlled variable and is held at a predefinable setpoint level via automatic formation regulation. In addition to the formation, the charge concentration of the suspension is measured as a controlled variable and is taken into consideration during the formation regulation.

Method for regulating the formation of a fibrous web

The invention relates to a method for removing solid matter, in particular impurities, by means of flotation from a fibrous material suspension (S), wherein the fibrous material suspension (S) is mixed with gas (L), and wherein in at least two flotation chambers (&#x2033;&#x2033;) flotation foam () is formed that collects solid matter and removes it from the flotation chamber. The flotation foam () of at least one flotation chamber (&#x2033;&#x2033;) is at least partially conducted into at least one other flotation chamber (), in particular in the flotation foam () formed therein. According to the method, the complexity can be reduced, even with high requirements regarding effect and yield.

Method for removing solid matter from a fibrous material suspension by means of flotation

Device and process for the removal of air from flotation foam formed during the flotation of a paper-fiber-containing suspension. The device includes a driven rotor that includes a shaft and at least one rotor blade positioned on the shaft, and a non-rotating wall arranged to surround the rotor in a region of the rotor blade by a non-rotating wall. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Device for separating air from flotation foam

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Berg, Germany

Herbert Britz